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US1985287A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of fast dyeings on textile fibers
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1932-04-22
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Granted: 1934-12-25
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Expires: 1952-04-22
Abstract
No abstract record available.
Inventors
- 👤 Haddock Norman Hulton
- 👤 Ridge Glen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:30
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/02; D06P3/04; D06P3/14; C; C09; C09B; C09B1/00; C09B1/16; C09B1/56; C09B1/58; C09B1/60; D06P1/00; D06P1/0048; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-12-24 | 1938-06-25 | 1938-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-12-24 | 1942-06-25 | 1942-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-12-24 | 1946-06-25 | 1946-12-25 | $7700.00 | Window Closed / Lapsed |